In an experiment on animals, the effectiveness of osseointegration of DIF Dental Implants Classic Heavy implants (manufactured in the Russian Federation) was evaluated. The assessment was carried out at 30 and 60 days after the implantation of standard structures into the proximal condyle of the right tibia of rabbits with an assessment of implant stability and morphological changes in the process of osseointegration. It has been established that modification of the implant surface with calcium hydroxyapatite with characteristics close to the phase composition of bone matrix hydroxyapatite increases the efficiency of osseointegration, which is manifested both in higher indicators of secondary stability of implants and more intensive processes of bone tissue regeneration in the periimplantation zone.